<template>
    <div class="container">
        <el-row>
            <el-col :span="12" :xs="0"></el-col>
            <el-col :span="12" :xs="24">
                <el-form
                    class="login_form"
                    ref="loginForms"
                    :model="loginForm"
                    :rules="rules"
                >
                    <h1>Hello</h1>
                    <h2>欢迎</h2>
                    <el-form-item prop="username">
                        <el-input
                            :prefix-icon="User"
                            v-model="loginForm.username"
                        ></el-input>
                    </el-form-item>
                    <el-form-item prop="password">
                        <el-input
                            :prefix-icon="Lock"
                            type="password"
                            v-model="loginForm.password"
                            show-password
                        ></el-input>
                    </el-form-item>
                    <el-form-item>
                        <el-button
                            :loading="loading"
                            type="primary"
                            style="width: 100%"
                            @click="login"
                        >
                            登录
                        </el-button>
                    </el-form-item>
                </el-form>
            </el-col>
        </el-row>
    </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
import { reactive, ref } from 'vue'
import useUserStore from '@/store/modules/user'
import { useRouter, useRoute } from 'vue-router'
import { ElNotification } from 'element-plus'
import { getTime } from '@/util/time'

let userStore = useUserStore()
let $router = useRouter()
let $route = useRoute()
let loginForm = reactive({
    username: 'admin',
    password: 'atguigu123',
})
let loginForms = ref()
let loading = ref(false)

const login = async () => {
    // debugger
    await loginForms.value.validate()
    loading.value = true
    try {
        await userStore.userLogin(loginForm)
        let redirect: any = $route.query.redirect
        $router.push({ path: redirect || '/' })
        ElNotification({
            type: 'success',
            title: `hi ${getTime()}好`,
            message: '欢迎回来',
        })
        loading.value = false
    } catch (err: any) {
        loading.value = false
        ElNotification({
            type: 'error',
            message: err.message,
        })
    }
}
//自定义校验规则函数
const validatorUserName = (rule: any, value: any, callback: any) => {
    //rule:即为校验规则对象
    //value:即为表单元素文本内容
    //函数:如果符合条件callBack放行通过即为
    //如果不符合条件callBack方法,注入错误提示信息
    if (value.length >= 5) {
        callback()
    } else {
        callback(new Error('账号长度至少五位'))
    }
}

const validatorPassword = (rule: any, value: any, callback: any) => {
    if (value.length >= 6) {
        callback()
    } else {
        callback(new Error('密码长度至少六位'))
    }
}
const rules = {
    username: [
        {
            trigger: 'change',
            validator: validatorUserName,
        },
    ],
    password: [
        {
            trigger: 'change',
            validator: validatorPassword,
        },
    ],
}
</script>

<style scoped lang="scss">
.container {
    width: 100%;
    height: 100vh;
    background: url('@/assets/images/background.jpg');
    background-size: cover;

    .login_form {
        position: relative;
        top: 30vh;
        width: 80%;
        padding: 40px;
        background: url('@/assets/images/login_form.png');
        background-size: cover;

        h1 {
            font-size: 40px;
            color: white;
        }

        h2 {
            margin: 20px 0;
            font-size: 20px;
            color: white;
        }
    }
}
</style>
